Chin up bar assembly for an exercise apparatus



FIG. 1 is a perspective view of the chin up bar assembly for an exercise apparatus showing my new design;

FIG. 2 is an enlarged perspective view of the chin up bar assembly of FIG. 1;

FIG. 3 is a top view of the chin up bar assembly;

FIG. 4 is a rear view of the chin up bar assembly;

FIG. 5 is a front view of the chin up bar assembly; and,

FIG. 6 is a side view of the chin up bar assembly.

The broken line showing of the exercise apparatus in FIG. 1 is included for the purpose of illustrating environmental structure and forms no part of the claimed design. 

I claim the ornamental design for a chin up bar assembly for an excercise apparatus, as shown and described. 